Mobile fix guide
Heavy Page Weight for Mobile
Large HTML size hurts mobile users on slow connections. Pages over 100KB of HTML take significantly longer to parse on mobile devices.
Issue ID: MOBILE-WEIGHT-001
Severity: high
Impact: High
Effort: M
Use this article when
- You need deeper remediation guidance than the issue card can show.
- You want CMS-specific steps before handing the fix to a developer.
- You want a repeatable re-check path after shipping the change.
What this issue is
Large HTML size hurts mobile users on slow connections. Pages over 100KB of HTML take significantly longer to parse on mobile devices.
Why it matters
Large HTML size hurts mobile users on slow connections. Pages over 100KB of HTML take significantly longer to parse on mobile devices. This affects usability on phones, which is where most local-business traffic now happens.
How we detect it
- FreeSiteAudit flags this issue when the rule for MOBILE-WEIGHT-001 fails and the page evidence points to Http headers.
- You can usually confirm this by checking the page source or the relevant page settings inside your CMS.
Evidence examples
Check the affected page source, rendered output, or relevant CMS setting to confirm the missing or incorrect element.
How to fix it
- 1Minify HTML, CSS, and JavaScript
- 2Remove unused code and inline styles
- 3Defer non-critical resources
- 4Compress images and use modern formats (WebP, AVIF)
How to re-check it
- Check HTML size is under 100KB after compression
Related tools
This issue is best verified with the full FreeSiteAudit crawl rather than a single-point mini tool.